#include <linux/etherdevice.h>
#include "ar8216.h"
+/* size of the vlan table */
+#define AR8X16_MAX_VLANS 128
+#define AR8X16_PROBE_RETRIES 10
struct ar8216_priv {
- int (*hardstart)(struct sk_buff *skb, struct net_device *dev);
-
struct switch_dev dev;
struct phy_device *phy;
u32 (*read)(struct ar8216_priv *priv, int reg);
void (*write)(struct ar8216_priv *priv, int reg, u32 val);
+ const struct net_device_ops *ndo_old;
+ struct net_device_ops ndo;
+ struct mutex reg_mutex;
+ int chip;
/* all fields below are cleared on reset */
bool vlan;
- u8 vlan_id[AR8216_NUM_VLANS];
- u8 vlan_table[AR8216_NUM_VLANS];
+ u16 vlan_id[AR8X16_MAX_VLANS];
+ u8 vlan_table[AR8X16_MAX_VLANS];
u8 vlan_tagged;
u16 pvid[AR8216_NUM_PORTS];
};
return v;
}
+static inline int
+ar8216_id_chip(struct ar8216_priv *priv)
+{
+ u32 val;
+ u16 id;
+ int i;
+
+ val = ar8216_mii_read(priv, AR8216_REG_CTRL);
+ if (val == ~0)
+ return UNKNOWN;
+
+ id = val & (AR8216_CTRL_REVISION | AR8216_CTRL_VERSION);
+ for (i = 0; i < AR8X16_PROBE_RETRIES; i++) {
+ u16 t;
+
+ val = ar8216_mii_read(priv, AR8216_REG_CTRL);
+ if (val == ~0)
+ return UNKNOWN;
+
+ t = val & (AR8216_CTRL_REVISION | AR8216_CTRL_VERSION);
+ if (t != id)
+ return UNKNOWN;
+ }
+
+ switch (id) {
+ case 0x0101:
+ return AR8216;
+ case 0x1001:
+ return AR8316;
+ default:
+ printk(KERN_DEBUG
+ "ar8216: Unknown Atheros device [ver=%d, rev=%d, phy_id=%04x%04x]\n",
+ (int)(id >> AR8216_CTRL_VERSION_S),
+ (int)(id & AR8216_CTRL_REVISION),
+ priv->phy->bus->read(priv->phy->bus, priv->phy->addr, 2),
+ priv->phy->bus->read(priv->phy->bus, priv->phy->addr, 3));
+
+ return UNKNOWN;
+ }
+}
+
static int
ar8216_set_vlan(struct switch_dev *dev, const struct switch_attr *attr,
struct switch_val *val)
ar8216_set_pvid(struct switch_dev *dev, int port, int vlan)
{
struct ar8216_priv *priv = to_ar8216(dev);
+
+ /* make sure no invalid PVIDs get set */
+
+ if (vlan >= dev->vlans)
+ return -EINVAL;
+
priv->pvid[port] = vlan;
return 0;
}
buf[1] = 0x80;
send:
- return priv->hardstart(skb, dev);
+ return priv->ndo_old->ndo_start_xmit(skb, dev);
error:
dev_kfree_skb_any(skb);
goto recv;
/* lookup port vid from local table, the switch passes an invalid vlan id */
- vlan = priv->pvid[port];
+ vlan = priv->vlan_id[priv->pvid[port]];
buf[14 + 2] &= 0xf0;
buf[14 + 2] |= vlan >> 8;
error:
/* no vlan? eat the packet! */
dev_kfree_skb_any(skb);
- return 0;
+ return NET_RX_DROP;
}
static int
static struct switch_attr ar8216_globals[] = {
{
.type = SWITCH_TYPE_INT,
- .name = "vlan",
+ .name = "enable_vlan",
.description = "Enable VLAN mode",
.set = ar8216_set_vlan,
.get = ar8216_get_vlan,
.description = "VLAN ID",
.set = ar8216_set_vid,
.get = ar8216_get_vid,
- .max = 4095,
+ .max = 4094,
},
};
/* make sure that an untagged port does not
* appear in other vlans */
- for (j = 0; j < AR8216_NUM_VLANS; j++) {
+ for (j = 0; j < AR8X16_MAX_VLANS; j++) {
if (j == val->port_vlan)
continue;
priv->vlan_table[j] &= ~(1 << p->id);
u8 portmask[AR8216_NUM_PORTS];
int i, j;
+ mutex_lock(&priv->reg_mutex);
/* flush all vlan translation unit entries */
ar8216_vtu_op(priv, AR8216_VTU_OP_FLUSH, 0);
if (priv->vlan) {
/* calculate the port destination masks and load vlans
* into the vlan translation unit */
- for (j = 0; j < AR8216_NUM_VLANS; j++) {
+ for (j = 0; j < AR8X16_MAX_VLANS; j++) {
u8 vp = priv->vlan_table[j];
if (!vp)
portmask[i] |= vp & ~mask;
}
- if (!priv->vlan_table[j])
- continue;
-
ar8216_vtu_op(priv,
AR8216_VTU_OP_LOAD |
(priv->vlan_id[j] << AR8216_VTU_VID_S),
} else {
egress = AR8216_OUT_STRIP_VLAN;
}
- ingress = AR8216_IN_SECURE;
+ if (priv->vlan) {
+ ingress = AR8216_IN_SECURE;
+ } else {
+ ingress = AR8216_IN_PORT_ONLY;
+ }
ar8216_rmw(priv, AR8216_REG_PORT_CTRL(i),
AR8216_PORT_CTRL_LEARN | AR8216_PORT_CTRL_VLAN_MODE |
AR8216_PORT_CTRL_SINGLE_VLAN | AR8216_PORT_CTRL_STATE |
AR8216_PORT_CTRL_HEADER | AR8216_PORT_CTRL_LEARN_LOCK,
AR8216_PORT_CTRL_LEARN |
- (i == AR8216_PORT_CPU ? AR8216_PORT_CTRL_HEADER : 0) |
+ (priv->vlan && i == AR8216_PORT_CPU && (priv->chip == AR8216) ?
+ AR8216_PORT_CTRL_HEADER : 0) |
(egress << AR8216_PORT_CTRL_VLAN_MODE_S) |
(AR8216_PORT_STATE_FORWARD << AR8216_PORT_CTRL_STATE_S));
(ingress << AR8216_PORT_VLAN_MODE_S) |
(pvid << AR8216_PORT_VLAN_DEFAULT_ID_S));
}
+ mutex_unlock(&priv->reg_mutex);
+ return 0;
+}
+
+static int
+ar8316_hw_init(struct ar8216_priv *priv) {
+ static int initialized;
+ int i;
+ u32 val;
+ struct mii_bus *bus;
+
+ if (initialized)
+ return 0;
+
+ val = priv->read(priv, 0x8);
+
+ if (priv->phy->interface == PHY_INTERFACE_MODE_RGMII) {
+ /* value taken from Ubiquiti RouterStation Pro */
+ if (val == 0x81461bea) {
+ /* switch already intialized by bootloader */
+ initialized = true;
+ return 0;
+ }
+ priv->write(priv, 0x8, 0x81461bea);
+ } else if (priv->phy->interface == PHY_INTERFACE_MODE_GMII) {
+ /* value taken from AVM Fritz!Box 7390 sources */
+ if (val == 0x010e5b71) {
+ /* switch already initialized by bootloader */
+ initialized = true;
+ return 0;
+ }
+ priv->write(priv, 0x8, 0x010e5b71);
+ } else {
+ /* no known value for phy interface */
+ printk(KERN_ERR "ar8316: unsupported mii mode: %d.\n",
+ priv->phy->interface);
+ return -EINVAL;
+ }
+
+ /* standard atheros magic */
+ priv->write(priv, 0x38, 0xc000050e);
+
+ /* Initialize the ports */
+ bus = priv->phy->bus;
+ for (i = 0; i < 5; i++) {
+ if ((i == 4) &&
+ priv->phy->interface == PHY_INTERFACE_MODE_RGMII) {
+ /* work around for phy4 rgmii mode */
+ bus->write(bus, i, MII_ATH_DBG_ADDR, 0x12);
+ bus->write(bus, i, MII_ATH_DBG_DATA, 0x480c);
+ /* rx delay */
+ bus->write(bus, i, MII_ATH_DBG_ADDR, 0x0);
+ bus->write(bus, i, MII_ATH_DBG_DATA, 0x824e);
+ /* tx delay */
+ bus->write(bus, i, MII_ATH_DBG_ADDR, 0x5);
+ bus->write(bus, i, MII_ATH_DBG_DATA, 0x3d47);
+ msleep(1000);
+ }
+ /* initialize the port itself */
+ bus->write(bus, i, MII_ADVERTISE,
+ ADVERTISE_ALL | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
+ bus->write(bus, i, MII_CTRL1000, ADVERTISE_1000FULL);
+ bus->write(bus, i, MII_BMCR, BMCR_RESET | BMCR_ANENABLE);
+ msleep(1000);
+ }
+ initialized = true;
return 0;
}
struct ar8216_priv *priv = to_ar8216(dev);
int i;
+ mutex_lock(&priv->reg_mutex);
memset(&priv->vlan, 0, sizeof(struct ar8216_priv) -
offsetof(struct ar8216_priv, vlan));
- for (i = 0; i < AR8216_NUM_VLANS; i++) {
+ for (i = 0; i < AR8X16_MAX_VLANS; i++) {
priv->vlan_id[i] = i;
}
for (i = 0; i < AR8216_NUM_PORTS; i++) {
if (i == AR8216_PORT_CPU) {
priv->write(priv, AR8216_REG_PORT_STATUS(i),
AR8216_PORT_STATUS_LINK_UP |
- AR8216_PORT_STATUS_SPEED |
+ ((priv->chip == AR8316) ?
+ AR8216_PORT_SPEED_1000M : AR8216_PORT_SPEED_100M) |
AR8216_PORT_STATUS_TXMAC |
AR8216_PORT_STATUS_RXMAC |
+ ((priv->chip == AR8316) ? AR8216_PORT_STATUS_RXFLOW : 0) |
+ ((priv->chip == AR8316) ? AR8216_PORT_STATUS_TXFLOW : 0) |
AR8216_PORT_STATUS_DUPLEX);
} else {
priv->write(priv, AR8216_REG_PORT_STATUS(i),
/* XXX: undocumented magic from atheros, required! */
priv->write(priv, 0x38, 0xc000050e);
- ar8216_rmw(priv, AR8216_REG_GLOBAL_CTRL,
- AR8216_GCTRL_MTU, 1518 + 8 + 2);
+ if (priv->chip == AR8216) {
+ ar8216_rmw(priv, AR8216_REG_GLOBAL_CTRL,
+ AR8216_GCTRL_MTU, 1518 + 8 + 2);
+ } else if (priv->chip == AR8316) {
+ /* enable jumbo frames */
+ ar8216_rmw(priv, AR8216_REG_GLOBAL_CTRL,
+ AR8316_GCTRL_MTU, 9018 + 8 + 2);
+ }
+ if (priv->chip == AR8316) {
+ /* enable cpu port to receive multicast and broadcast frames */
+ priv->write(priv, AR8216_REG_FLOOD_MASK, 0x003f003f);
+ }
+ mutex_unlock(&priv->reg_mutex);
return ar8216_hw_apply(dev);
}
struct net_device *dev = pdev->attached_dev;
int ret;
- printk("%s: AR8216 PHY driver attached.\n", pdev->attached_dev->name);
- pdev->supported = ADVERTISED_100baseT_Full;
- pdev->advertising = ADVERTISED_100baseT_Full;
-
priv = kzalloc(sizeof(struct ar8216_priv), GFP_KERNEL);
if (priv == NULL)
return -ENOMEM;
priv->phy = pdev;
+
+ priv->chip = ar8216_id_chip(priv);
+
+ if (pdev->addr == 0)
+ printk(KERN_INFO "%s: AR%d switch driver attached.\n",
+ pdev->attached_dev->name, priv->chip);
+
+
+ if (pdev->addr != 0) {
+ if (priv->chip == AR8316) {
+ pdev->supported |= SUPPORTED_1000baseT_Full;
+ pdev->advertising |= ADVERTISED_1000baseT_Full;
+ }
+ kfree(priv);
+ return 0;
+ }
+
+ pdev->supported = priv->chip == AR8316 ?
+ SUPPORTED_1000baseT_Full : SUPPORTED_100baseT_Full;
+ pdev->advertising = pdev->supported;
+
+ mutex_init(&priv->reg_mutex);
priv->read = ar8216_mii_read;
priv->write = ar8216_mii_write;
memcpy(&priv->dev, &athdev, sizeof(struct switch_dev));
pdev->priv = priv;
+
+ if (priv->chip == AR8316) {
+ priv->dev.name = "Atheros AR8316";
+ priv->dev.vlans = AR8X16_MAX_VLANS;
+ /* port 5 connected to the other mac, therefore unusable */
+ priv->dev.ports = (AR8216_NUM_PORTS - 1);
+ }
+
if ((ret = register_switch(&priv->dev, pdev->attached_dev)) < 0) {
kfree(priv);
goto done;
}
+ if (priv->chip == AR8316) {
+ ret = ar8316_hw_init(priv);
+ if (ret) {
+ kfree(priv);
+ goto done;
+ }
+ }
+
ret = ar8216_reset_switch(&priv->dev);
- if (ret)
+ if (ret) {
+ kfree(priv);
goto done;
+ }
dev->phy_ptr = priv;
- pdev->pkt_align = 2;
- priv->hardstart = dev->hard_start_xmit;
- pdev->netif_receive_skb = ar8216_netif_receive_skb;
- pdev->netif_rx = ar8216_netif_rx;
- dev->hard_start_xmit = ar8216_mangle_tx;
+
+ /* VID fixup only needed on ar8216 */
+ if (pdev->addr == 0 && priv->chip == AR8216) {
+ pdev->pkt_align = 2;
+ pdev->netif_receive_skb = ar8216_netif_receive_skb;
+ pdev->netif_rx = ar8216_netif_rx;
+ priv->ndo_old = dev->netdev_ops;
+ memcpy(&priv->ndo, priv->ndo_old, sizeof(struct net_device_ops));
+ priv->ndo.ndo_start_xmit = ar8216_mangle_tx;
+ dev->netdev_ops = &priv->ndo;
+ }
done:
return ret;
ar8216_read_status(struct phy_device *phydev)
{
struct ar8216_priv *priv = phydev->priv;
+ int ret;
+ if (phydev->addr != 0) {
+ return genphy_read_status(phydev);
+ }
- phydev->speed = SPEED_100;
+ phydev->speed = priv->chip == AR8316 ? SPEED_1000 : SPEED_100;
phydev->duplex = DUPLEX_FULL;
- phydev->state = PHY_UP;
+ phydev->link = 1;
/* flush the address translation unit */
- if (ar8216_wait_bit(priv, AR8216_REG_ATU, AR8216_ATU_ACTIVE, 0))
- return -ETIMEDOUT;
+ mutex_lock(&priv->reg_mutex);
+ ret = ar8216_wait_bit(priv, AR8216_REG_ATU, AR8216_ATU_ACTIVE, 0);
- priv->write(priv, AR8216_REG_ATU, AR8216_ATU_OP_FLUSH);
+ if (!ret)
+ priv->write(priv, AR8216_REG_ATU, AR8216_ATU_OP_FLUSH);
+ else
+ ret = -ETIMEDOUT;
+ mutex_unlock(&priv->reg_mutex);
- return 0;
+ phydev->state = PHY_RUNNING;
+ netif_carrier_on(phydev->attached_dev);
+ phydev->adjust_link(phydev->attached_dev);
+
+ return ret;
}
static int
ar8216_config_aneg(struct phy_device *phydev)
{
- return 0;
+ if (phydev->addr == 0)
+ return 0;
+
+ return genphy_config_aneg(phydev);
}
static int
ar8216_probe(struct phy_device *pdev)
{
struct ar8216_priv priv;
-
- u8 id, rev;
- u32 val;
+ u16 chip;
priv.phy = pdev;
- val = ar8216_mii_read(&priv, AR8216_REG_CTRL);
- rev = val & 0xff;
- id = (val >> 8) & 0xff;
- if ((id != 1) || (rev != 1))
+ chip = ar8216_id_chip(&priv);
+ if (chip == UNKNOWN)
return -ENODEV;
return 0;
if (!priv)
return;
- if (priv->hardstart && dev)
- dev->hard_start_xmit = priv->hardstart;
- unregister_switch(&priv->dev);
+ if (priv->ndo_old && dev)
+ dev->netdev_ops = priv->ndo_old;
+ if (pdev->addr == 0)
+ unregister_switch(&priv->dev);
kfree(priv);
}
};
static struct phy_driver ar8216_driver = {
- .name = "Atheros AR8216",
+ .phy_id = 0x004d0000,
+ .name = "Atheros AR8216/AR8316",
+ .phy_id_mask = 0xffff0000,
.features = PHY_BASIC_FEATURES,
.probe = ar8216_probe,
.remove = ar8216_remove,
projects / openwrt.git / blobdiff